Since there is a hard line where objects simply "disappear" in the 'verse, can I reasonably assume that this has has always been a simple matter of trying to keep a lid on how much is rendered in each sector?

As we begin to see sectors that have more bots and more roids and that all runs so much smoother than before, will we also be able to begin seeing things (roids, ships, bots) beyond the mysterious stealth-wall out there where things simply go dark?

Except for the title, this is a question, not a suggestion.

Have you tried turning up your game settings?

I believe this was actually discussed recently, where Incarnate discussed that its on his big board of things to work on.